Improve tagging of docker images

.github/workflows/docker-image.yml

@@ -0,0 +1,51 @@
+name: Create and publish a Docker image
+
+on:
+  push:
+    branches: ["master"]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=schedule,pattern=nightly
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=ref,event=branch
+            type=ref,event=pr
+            type=sha
+            # set latest tag for stable releases
+            type=raw,value=latest,enable=${{ github.event.release.prerelease == false }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Pipfile

@@ -11,6 +11,7 @@ motor = "~=3.0"
 natural = "~=0.2.0"
 pymongo = {version = "*", extras = ['srv']}  # Required by motor
 python-dateutil = "~=2.8.2"
+python-dotenv = "~=0.18.0"
 sanic = "~=22.6.0"
 
 [scripts]